Dividing wall type dry-wet combined cooling tower

Abstract

The utility model relates to the technical field of cooling, in particular to a dividing wall type dry and wet combined cooling tower which comprises an air cooler, a cooling chamber is arranged on the side wall, corresponding to an air inlet, of the air cooler, a first air inlet hole is formed in the side wall, away from the air inlet, of the cooling chamber, and a dividing wall type heat exchange mechanism is arranged in the cooling chamber between the first air inlet hole and the air inlet. The air inlet end of the dividing wall type heat exchange mechanism corresponds to the position of the first air inlet hole, the air outlet end of the dividing wall type heat exchange mechanism corresponds to the position of the air inlet, the top of the dividing wall type heat exchange mechanism is a spraying water inlet end, the bottom of the dividing wall type heat exchange mechanism is a spraying water outlet end, and a spraying mechanism is arranged in the cooling chamber above the dividing wall type heat exchange mechanism; by means of the technical scheme, the air cooler solves the problem that an existing air cooler directly utilizes outside air to cool a medium to be cooled, and the cooling effect is prone to being affected.

Description

Technical Field

[0001] This utility model relates to a cooler, specifically a partitioned dry-wet combined cooling tower. Background Technology

[0002] An air cooler is a device that uses air as a cooling medium to lower the temperature of a fluid, which can be a liquid or a gas. It achieves its cooling purpose through heat exchange between the air and the fluid.

[0003] Existing air coolers typically utilize outside air to exchange heat with the medium to be cooled inside the finned heat exchanger. However, in summer when the outside air temperature is high, the cooling effect of the medium is small after heat exchange with the air, resulting in the medium's temperature not reaching the required value for actual use, thus affecting the cooling effect. Utility Model Content

[0004] In order to solve the problems in related technologies, this utility model provides a partitioned dry-wet combined cooling tower. This device solves the problem that existing air coolers that directly use outside air to cool the medium to be cooled are prone to affecting the cooling effect.

[0005] To solve the above problems, the following technical solutions are provided:

[0006] A type of indirect-wall combined dry and wet cooling tower includes an air cooler, characterized in that the air cooler has a cooling chamber on the side wall corresponding to the air inlet, a first air inlet hole on the side wall of the cooling chamber away from the air inlet, an indirect-wall heat exchange mechanism in the cooling chamber between the first air inlet hole and the air inlet, the air inlet end of the indirect-wall heat exchange mechanism corresponds to the position of the first air inlet hole, the air outlet end of the indirect-wall heat exchange mechanism corresponds to the position of the air inlet, the top of the indirect-wall heat exchange mechanism is the spray water inlet end, the bottom of the indirect-wall heat exchange mechanism is the spray water outlet end, and a spray mechanism is in the cooling chamber above the indirect-wall heat exchange mechanism.

[0007] The partition-type heat exchange mechanism is composed of several heat exchange plates stacked sequentially. The evenly distributed gaps between each heat exchange plate are liquid passages for the inlet and outlet of spray water. Each heat exchange plate has multiple ventilation channels for the inlet and outlet of air on its side wall. The two ends of each ventilation channel correspond to the positions of the air inlet hole and air inlet. The multiple ventilation channels are arranged sequentially from top to bottom along the longitudinal direction of the corresponding heat exchange plate.

[0008] Through the above technical solution, by setting up a cooling chamber, when it is summer or the temperature of the air entering the cooling tower from the outside environment is high, the outside air enters the cooling chamber through the first air inlet. At this time, the air at the dry bulb temperature is introduced into the heat exchange mechanism of the middle wall of the cooling chamber through the first air inlet. After the air at the dry bulb temperature is cooled down, it enters the air cooler through the air inlet in the cooling chamber and exchanges heat with the medium to be cooled. Since the air entering the air cooler has been pre-cooled, its temperature is low, thus ensuring the cooling effect.

[0009] In addition, the air entering the partition heat exchanger and the water sprayed by the spraying mechanism have corresponding inlet and outlet channels, so that the air and water will not come into direct contact. The air entering the air cooler after heat exchange is cold and dry air. Cold and dry air can better absorb the heat in the medium to be cooled through evaporation, thus ensuring that the temperature of the medium after heat exchange meets the actual use requirements, thereby ensuring the cooling effect.

[0010] Furthermore, there is a second air inlet on the side wall of the cooling chamber below the first air inlet.

[0011] Through the above technical solution, by setting up a second air inlet, when it is summer or the ambient air temperature entering the cooling tower is high, wet-bulb temperature air is introduced into the cooling chamber through the second air inlet. This wet-bulb temperature air enters the cooling chamber located below the partition heat exchange mechanism. Compared with the dry-bulb temperature air, the wet-bulb temperature air is lower. This wet-bulb temperature air exchanges heat with the water falling from the partition heat exchange mechanism again. The water transfers heat to the dry-bulb temperature air, and its own temperature decreases. After the hot water temperature decreases, it becomes cooling water and falls to the bottom of the cooling chamber for the next spraying action. This ensures that the water sprayed by the spraying mechanism on the partition heat exchange mechanism is always low-temperature cooling water, thereby ensuring the normal and efficient operation of the entire equipment and continuously providing a good cooling effect for the medium to be cooled.

[0012] Furthermore, since the air entering the cooling tower from the second air inlet is in direct contact with the water falling from the partition heat exchange mechanism, the cooling rate and cooling effect can be improved.

[0013] Furthermore, a water collector is fixedly installed in the cooling chamber, and the water collector is positioned above the spray mechanism.

[0014] Through the above technical solution, by setting up a water collector, the air entering the cooling chamber from the second air inlet will directly contact and exchange heat with the sprayed water. At this time, the air after heat exchange contains moisture. The water collector can separate the water droplets from the air before the moisture-containing air is drawn out of the cooling chamber by the fan, thereby reducing the loss of water in the cooling chamber, thus ensuring the long-term normal operation of the cooling chamber and reducing costs.

[0015] Furthermore, a water collection tank is provided below the first air inlet tunnel corresponding to the cooling chamber; the spraying mechanism includes a water pump and multiple water delivery pipes; the water pump is located on the side of the cooling chamber away from the air cooler, the water inlet of the water pump is connected to a water suction pipe, the water suction pipe is connected to the water collection tank, the water outlet of the water pump is connected to a water delivery pipe, and the water delivery pipe is arranged in a vertical pipe shape, the other end of the water delivery pipe is connected to a liquid passage pipe, the liquid passage pipe is arranged along the width direction in the cooling chamber, and the two ends of the liquid passage pipe in the length direction are sealed;

[0016] Multiple water supply pipes are arranged sequentially along the width direction of the cooling chamber, and each water supply pipe is located below the water collector. One end of each water supply pipe is connected to the liquid passage pipe, and the other end of each water supply pipe is sealed. Multiple spray heads are connected to the bottom of each water supply pipe.

[0017] Through the above technical solution, by setting up multiple spray heads, the spray heads can evenly spray the cooling water in the water collection tank onto the partition heat exchange mechanism, thereby increasing the uniformity of heat exchange between the cooling water and the air, and thus improving the cooling efficiency.

[0018] Furthermore, the air cooler is equipped with a finned heat exchanger, which is arranged at an angle.

[0019] Through the above technical solution, by setting the finned heat exchanger in an inclined manner, compared with the vertically set finned heat exchanger, when the finned heat exchanger is arranged in an inclined manner, the flow rate of the medium to be cooled in the finned heat exchanger is slower, and the residence time of the medium to be cooled in the finned heat exchanger is increased. At this time, the time for the medium to be cooled to exchange heat with the cold air is longer, thereby improving the heat exchange efficiency.

[0020] Furthermore, there are two first air inlets, and cooling chambers are provided on both sides of the air cooler corresponding to the two first air inlets.

[0021] By using the above technical solution and setting up two cooling chambers, the air entering the air cooler from the other side can also be pre-cooled, thereby increasing the amount of cold air entering the air cooler and thus increasing the cooling efficiency.

[0022] Furthermore, fans are installed on the top of both the air cooler and the cooling chamber.

[0023] The above solution has the following advantages:

[0024] 1. By setting up a cooling chamber, when it is summer or the ambient air temperature entering the cooling tower is high, the ambient air temperature is high. The ambient air enters the cooling chamber through the first air inlet. At this time, the air at the dry bulb temperature is introduced into the middle wall heat exchange mechanism of the cooling chamber through the first air inlet. After the air at the dry bulb temperature is cooled down, it enters the air cooler through the air inlet in the cooling chamber and exchanges heat with the medium to be cooled. Since the air entering the air cooler has been pre-cooled, its temperature is low, thus ensuring the cooling effect.

[0025] In addition, the air entering the partition heat exchanger and the water sprayed down by the spraying mechanism have corresponding inlet and outlet channels, so that the air and water will not come into direct contact. The air entering the air cooler after heat exchange is cold and dry air. Cold and dry air can better absorb the heat in the medium to be cooled through evaporation, thereby ensuring that the temperature of the medium after heat exchange meets the actual use requirements, thus ensuring the cooling effect.

[0026] 2. By setting up a second air inlet, when it is summer or the ambient air temperature entering the cooling tower is high, wet-bulb temperature air is introduced into the cooling chamber through the second air inlet. This wet-bulb temperature air enters the cooling chamber located below the partition heat exchange mechanism. Compared to dry-bulb temperature air, the wet-bulb temperature air is lower. This wet-bulb temperature air exchanges heat with the water falling from the partition heat exchange mechanism again. The water transfers heat to the dry-bulb temperature air, and its own temperature decreases. After the hot water temperature decreases, it becomes cooling water and falls to the bottom of the cooling chamber for the next spraying action. This ensures that the water sprayed by the spraying mechanism on the partition heat exchange mechanism is always low-temperature cooling water, thereby ensuring the normal and efficient operation of the entire equipment and continuously providing a good cooling effect for the medium to be cooled.

[0027] In addition, since the air entering the cooling tower from the second air inlet is in direct contact with the water falling from the partition heat exchange mechanism, the cooling rate and cooling effect can be improved.

[0028] 3. With the water collector installed, the air entering the cooling chamber from the second air inlet will come into direct contact with the sprayed water and exchange heat. At this time, the air after heat exchange contains moisture. The water collector can separate the water droplets from the air before the moisture-containing air is drawn out of the cooling chamber by the fan, thereby reducing the loss of water in the cooling chamber, thus ensuring the long-term normal operation of the cooling chamber and reducing costs.

[0029] 4. By setting up multiple spray heads, the spray heads can evenly spray the cooling water in the water collection tank onto the partition heat exchange mechanism, thereby increasing the uniformity of heat exchange between the cooling water and the air, and thus improving the cooling efficiency.

[0030] 5. Due to the inclined arrangement of the finned heat exchanger, compared with the vertically arranged finned heat exchanger, the flow rate of the medium to be cooled in the finned heat exchanger is slower and the residence time of the medium to be cooled in the finned heat exchanger is increased. At this time, the time for the medium to be cooled to exchange heat with the cold air is longer, thereby improving the heat exchange efficiency.

[0031] 6. By setting up two cooling chambers, the air entering the air cooler from the other side can also be pre-cooled, thereby increasing the amount of cold air entering the air cooler and thus increasing the cooling efficiency. Attached Figure Description

[0032] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings, wherein:

[0033] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of a partitioned dry-wet combined cooling tower, where there is no partitioned heat exchange mechanism in the cooling chamber;

[0034] Figure 2 This is a cross-sectional view of Embodiment 1 of a partitioned wet-dry combined cooling tower;

[0035] Figure 3 This is a cross-sectional view of an air cooler in a partitioned wet-dry combined cooling tower.

[0036] Figure 4 This is a cross-sectional view of the cooling chamber in a partitioned wet-dry combined cooling tower;

[0037] Figure 5 This is a schematic diagram of the spraying mechanism in a partitioned dry-wet combined cooling tower.

[0038] Figure 6 This is a schematic diagram of the structure of a finned heat exchanger in a partitioned dry-wet combined cooling tower.

[0039] Figure 7 This is a schematic diagram of the structure of two adjacent heat exchange plates in the intermediate wall heat exchange mechanism of a partitioned dry-wet combined cooling tower.

[0040] Figure 8 This is a schematic diagram of the structure of Embodiment 2 of a partitioned dry-wet combined cooling tower, where there is no partitioned heat exchange mechanism in the cooling chamber;

[0041] Figure 9This is a cross-sectional view of Example 2 of a partitioned wet-dry combined cooling tower;

[0042] Figure 10 This is a cross-sectional view of the air cooler in Example 2 of a partitioned wet-dry combined cooling tower;

[0043] Explanation of reference numerals in the attached drawings: 1. Air cooler; 2. Air inlet; 3. Cooling chamber; 4. First air inlet tunnel; 5. Second air inlet tunnel; 6. Indirect heat exchanger; 7. Spraying mechanism; 701. Water pump; 702. Water supply pipe; 8. Heat exchanger; 9. Fan; 10. Water collector; 11. Water collection tank; 12. Pumping pipe; 13. Water supply pipe; 14. Liquid passage pipe; 15. Spray head. Detailed Implementation

[0044] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0045] In a specific embodiment, such as Figures 1-7 As shown, a partitioned dry-wet combined cooling tower includes an air cooler 1. A cooling chamber 3 is provided on the side wall corresponding to the air inlet 2 of the air cooler 1. A first air inlet 4 is provided on the side wall of the cooling chamber 3 away from the air inlet 2. A partitioned heat exchange mechanism 6 is provided in the cooling chamber 3 between the first air inlet 4 and the air inlet 2. The air inlet end of the partitioned heat exchange mechanism 6 corresponds to the position of the first air inlet 4, and the air outlet end of the partitioned heat exchange mechanism 6 corresponds to the position of the air inlet 2. The top of the partitioned heat exchange mechanism 6 is the spray water inlet end, and the bottom of the partitioned heat exchange mechanism 6 is the spray water outlet end. A spray mechanism 7 is provided in the cooling chamber 3 above the partitioned heat exchange mechanism 6. Fans 9 are provided on the top of both the air cooler 1 and the cooling chamber 3.

[0046] like Figure 2 As shown, there is a second air inlet 5 on the side wall of the cooling chamber 3 below the first air inlet 4.

[0047] like Figure 7 As shown, the partition wall heat exchange mechanism 6 is composed of several heat exchange plates stacked sequentially. The gaps evenly distributed between each heat exchange plate are liquid channels for the inlet and outlet of spray water. In this specific embodiment 1, the liquid channel is numbered P. There are multiple ventilation channels for air inlet and outlet on the side wall surface of each heat exchange plate. In this specific embodiment 1, each heat exchange plate is arranged in a wave shape, and the liquid channel is numbered Q. The two ends of each ventilation channel correspond to the positions of the air inlet hole and the air inlet. Multiple ventilation channels are arranged sequentially from top to bottom along the longitudinal direction of the corresponding heat exchange plate.

[0048] like Figure 2 As shown, a water collector 10 is fixedly installed inside the cooling chamber 3, and the water collector 10 is positioned above the spraying mechanism 7.

[0049] like Figure 2 As shown, a water collection tank 11 is provided below the first air inlet 4 and inside the corresponding cooling chamber 3.

[0050] like Figure 5 As shown, the spraying mechanism 7 includes a water pump 701 and multiple water supply pipes 702; the water pump 701 is located on the side of the cooling chamber 3 away from the air cooler 1, the water inlet of the water pump 701 is connected to a water suction pipe 12, the water suction pipe 12 is connected to a water collection tank 11, the water outlet of the water pump 701 is connected to a water supply pipe 13, and the water supply pipe 13 is arranged in a vertical pipe shape, the other end of the water supply pipe 13 is connected to a liquid passage pipe 14, the liquid passage pipe 14 is arranged along the width direction in the cooling chamber 3, and the two ends of the liquid passage pipe 14 in the length direction are sealed.

[0051] Multiple water supply pipes 702 are arranged sequentially along the width direction of the cooling chamber 3, and each water supply pipe 702 is located below the water collector 10. One end of each water supply pipe 702 is connected to the liquid pipe 14, and the other end of each water supply pipe 702 is sealed. Multiple spray heads 15 are connected to the bottom of each water supply pipe 702.

[0052] like Figure 6 As shown, the air cooler 1 is equipped with a finned heat exchanger 8, which is arranged at an angle and has a medium inlet and a medium outlet.

[0053] The operation process of specific embodiment 1: When it is summer or the ambient air temperature is high, the spray mechanism is in the open state and the fan at the top of the cooling chamber is in the open state. The water to be cooled enters from one end of the finned heat exchanger. At this time, the dry-bulb temperature air enters the partition heat exchange mechanism from the first air inlet. The spray mechanism draws away the cooling water in the water collection tank and sprays the cooling water onto the partition heat exchange mechanism through the spray head. As the cooling water falls, the dry-bulb temperature air and the cooling water will exchange heat in the partition heat exchange mechanism. After the heat exchange is completed, the temperature of the dry-bulb temperature air decreases and becomes cold dry air. It enters the air cooler through the first air inlet. In the air cooler, the cold dry air and the water to be cooled in the finned heat exchanger exchange heat. After the heat exchange is completed, the temperature of the cold dry air increases and is drawn away from the air cooler by the fan on the air cooler. The temperature of the water to be cooled decreases and is discharged from the other end of the finned heat exchanger for use.

[0054] During the heat exchange process between the dry-bulb temperature air and the cooling water, the heated cooling water falls from the bottom of the partition heat exchange mechanism. At the same time, the wet-bulb temperature air enters the cooling chamber below the partition heat exchange mechanism through the second air inlet. The wet-bulb temperature air and the heated cooling water falling from the bottom of the partition heat exchange mechanism come into direct contact and exchange heat. After the heat exchange is completed, the water temperature in the water collection tank decreases for the next use, and the temperature of the wet-bulb temperature air increases and is drawn out of the cooling chamber by the fan on the cooling chamber 3.

[0055] When the ambient air humidity around the cooling tower is low, the spray mechanism is closed, the fan at the top of the cooling chamber is closed, and outside air enters the air cooler directly through the air inlet duct.

[0056] Specific embodiment 2, such as Figure 3-10 As shown, the difference between this specific embodiment 2 and specific embodiment 1 is that in this specific embodiment 2, there are two first air inlets 2, and cooling chambers 3 are provided on both sides of the air cooler 1 corresponding to the two first air inlets 2.

[0057] The operation process of specific embodiment 2: The difference between the operation process of specific embodiment 2 and specific embodiment 1 is that when the air cooler of specific embodiment 2 is running, when it is summer or the temperature of the air entering the cooling tower from the outside environment is high, the two cooling chambers start simultaneously and the two spray mechanisms are in the open state to pre-cool the air entering the air cooler.

[0058] In the description of this utility model, it should be understood that the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In the description of this utility model, unless otherwise specified and limited, it should be noted that the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to mechanical or electrical connections, or internal connections between two components, and can be direct connections or indirect connections through an intermediate medium. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0059] Obviously, the above embodiments are merely examples for clear illustration and are not intended to limit the implementation. For those skilled in the art, other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all implementation methods here, and any obvious variations or modifications derived therefrom are still within the protection scope of this utility model.

Claims

1. A type of indirect-flow dry-wet combined cooling tower, comprising an air cooler, characterized in that, The air cooler has a cooling chamber on the side wall corresponding to the air inlet. The side wall of the cooling chamber away from the air inlet has a first air inlet hole. The cooling chamber between the first air inlet hole and the air inlet has a partition wall heat exchange mechanism. The air inlet end of the partition wall heat exchange mechanism corresponds to the position of the first air inlet hole, and the air outlet end of the partition wall heat exchange mechanism corresponds to the position of the air inlet. The top of the partition wall heat exchange mechanism is the spray water inlet end, and the bottom of the partition wall heat exchange mechanism is the spray water outlet end. There is a spray mechanism in the cooling chamber above the partition wall heat exchange mechanism.

2. The indirect-wall type dry-wet combined cooling tower as described in claim 1, characterized in that, There is a second air inlet on the side wall of the cooling chamber below the first air inlet.

3. The indirect-wall type dry-wet combined cooling tower as described in claim 1, characterized in that, The partition-type heat exchange mechanism is composed of several heat exchange plates stacked sequentially. The evenly distributed gaps between each heat exchange plate are liquid passages for the inlet and outlet of spray water. Each heat exchange plate has multiple ventilation channels for the inlet and outlet of air on its side wall. The two ends of each ventilation channel correspond to the positions of the air inlet hole and air inlet. The multiple ventilation channels are arranged sequentially from top to bottom along the longitudinal direction of the corresponding heat exchange plate.

4. A combined wet and dry cooling tower with indirect wall as described in claim 1, characterized in that, A water collector is fixedly installed in the cooling chamber and is positioned above the spraying mechanism.

5. A combined wet and dry cooling tower with indirect wall as described in claim 4, characterized in that, A water collection tank is provided below the first air inlet tunnel, corresponding to the cooling chamber; The spraying mechanism includes a water pump and multiple water delivery pipes; the water pump is located on the side of the cooling chamber away from the air cooler, the water pump inlet is connected to a water suction pipe, the water suction pipe is connected to the water collection tank, the water pump outlet is connected to a water delivery pipe, and the water delivery pipe is arranged in a vertical pipe shape, the other end of the water delivery pipe is connected to a liquid passage pipe, the liquid passage pipe is arranged along the width direction of the cooling chamber, and the two ends of the liquid passage pipe in the length direction are arranged in a sealed shape; Multiple water supply pipes are arranged sequentially along the width direction of the cooling chamber, and each water supply pipe is located below the water collector. One end of each water supply pipe is connected to the liquid passage pipe, and the other end of each water supply pipe is sealed. Multiple spray heads are connected to the bottom of each water supply pipe.

6. A combined wet and dry cooling tower with indirect wall as described in claim 1, characterized in that, The air cooler is equipped with a finned heat exchanger, which is arranged at an angle.

7. A combined wet and dry cooling tower with indirect wall as described in claim 1, characterized in that, The air inlet is provided in two places, and the cooling chamber is provided on both sides of the air cooler corresponding to the two air inlets.

8. A combined wet and dry cooling tower with indirect wall as described in claim 1, characterized in that, Both the air cooler and the cooling chamber are equipped with fans at their tops.

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